THE ENERGY MEASUREMENT SYSTEM OF CHOICE
With rising fuel costs the need for improvements in accurate energy measurement has driven the Cadillac® Energy Measurement Systems to be acknowledged as the new industry standard.
The Cadillac® HEATX BTU Meter is designed to measure the energy consumed in hot water heating and chilled water cooling systems. The meter is a rate and totalizing device, which is capable of calculating and displaying Volume, Energy, Temperatures and Peak Energy usage. Combined with Cadillac®'s superior flow meter technologies the HEATX provides the most accurate, repeatable, and maintenance free energy system available in the industry.
The Cadillac® HEATX BTU / Energy Meter measures the temperature in the feed and return lines via two precision matched 4-wire RTD's and from this calculates the density and enthalpy of the water. In addition, by also measuring the volume of water flowing in the system via the Cadillac® flow meter, the HEATX will then compute, display, and output the Energy consumed.
The New Industry Standard
Combined with Cadillac®'s superior flow meter technologies the HEATX BTU / Energy meter has quickly become
acknowledged as the industry standard. Customers choose the Cadillac® HEATX BTU / Energy Meter because of proven:
ACCURACY, DEPENDABILITY, CONSISTENCY, LOW MAINTENANCE, RANGEABILITY
APPLICATIONS:
- Energy consumption data source for energy management system, DCS, district-wide systems.
- Energy-Customer Billing from accurately totalized Energy / BTU measurements.
- Basis for internal cost distribution using campus-wide systems.
- Efficiency measuring and monitoring from central control rooms.
- Direct Energy / BTU measurements at both Boiler and point of use locations.
FEATURES:
Heating Mode:
Where Positive ΔT's only are totalized.
Cooling Mode:
Where Negative ΔT's only are totalized.
Heating/Cooling Mode:
Where the flow of energy may be for either heating or cooling. In this mode the energy total is increased regardless of
whether the ΔT is positive or negative.
Charge/Discharge Mode:
Where two separate registers totalize positive and negative totals.
PRINCIPLES OF OPERATION
 |
The Cadillac® HEATX BTU / Energy Meter
measures the temperature in the feed and return
lines via two precision matched 4-wire RTD's
and from this calculates the density and enthalpy
of the water. In addition, by also measuring the
volume of water flowing in the system via the
Cadillac® flow meter, the HEATX will then
compute, display, and output the Energy consumed.
Power is Calculated:
P = V x p x (htv-htr)
Where:
P = Power (watts)
V = Volumetric flow Rate
p = Density
htv = Specific enthalpy at Feed temperature
htr = Specific enthalpy at Return temperature
FLANGED METER DIMENSIONS
 |
INSTALLATION
GENERAL SPECIFICATIONS
- ENERGY SYSTEM SPECIFICATION:
The entire Energy Measurement System shall be supplied, calibrated, and commissioned (if necessary) by a single manufacture, Central Station Steam Co, and shall consist of a Energy / BTU meter, a non-mechanical flow meter, and two precision matched temperature sensors/thermowells. A certificate of NIST traceable calibration shall be provided with each system.
- ENERGY / BTU METER:
Provide a Cadillac® HEATX Energy / BTU Meter. The BTU meter shall provide the following measurements at the local display and as outputs* to an Building Control System. Energy Total, Energy Flow Rate, Volumetric Flow rate, Volume Total, Feed Temp, Return Temp, or ΔT. Output signals shall be either Serial RS-485 (Modbus RTU), Meter-Bus (IEC 870-5), or via analog (4-20 mADC) and or pulse (Open Collector). Each meter shall be factory configured for its specific application, and shall be reprogrammable using the front panel keypad (no special tools or computer required). Meter will be field adjustable for zero adjustment to any ΔT offset for specific application conditions. *Output options vary by model code and digital communications.
- TEMPERATURE SENSORS:
Temperature sensors shall be shall be precision matched, bath calibrated, NIST Traceable, 4-Wire PT100 RTD's. Temperature sensors will require no external power, and will include thermowell assembly and junction style head with terminations for landing field wiring. Temperature sensors shall be accurate to +/- 0.01% of temperature span. (with meter adjustment capability) system differential temperature accuracy will be +/- 0.10°F or better .
- FLOW METER:
Provide a Cadillac® CMAG Magnetic flow meter. The meter will have no moving parts, provide no flow obstruction, create no head loss / heat gain, will not be orientation sensitive, and may be installed in any location it may physically fit into the piping system, while providing an accuracy of +/- 0.50% of rate. If meter is installed with 1.5 pipe diameters up and downstream from its centerline the meter will be accurate to +/- 0.25% of rate. (In meter sizes 1/2" thru 3" the 1.5 diameter straight run requirement is met within flow tube). Meter will have minimum 100:1 turndown at stated accuracy. Meter will be provided with integral or remote electronics including a local 2-line backlit LCD for parameter viewing and easy interface / configuration. Meter will be preconfigured for application, but may be field adjusted through local display (no special tool or computer required).
FLOW METER SIZING INFORMATION
The Cadillac® magnetic flow meter has a 304 stainless steel body and
is always sold with grounding rings installed. The primary reason for providing
grounding rings is to contain the magnetic field within the meter body and
to assure the liquid potential is grounded properly. As a consequence, the
induced voltage is remarkably free of noise allowing the meter to reliably
measure extremely low fluid velocities. The table below lists minimum as
well as maximum flow ranges for each meter size, in GPM for liquids and lbs/hr
for condensate.
| Magmeter | Liquid Flow Range Table | Condensate Flow Range Table | ||
| Nominal Meter Body Size (inches) |
Minimum Volumetric Range (gal/min) | Maximum Volumetric Range (gal/min) |
Minimum Condensate Range (lbs/hr) |
Maximum Condensate Range (lbs/hr) |
| 0.1" | 0.00 - 0.024 | 0.00 - 0.800 | 0.00 - 12.00 | 0.00 - 400.0 |
| 0.17" | 0.00 - 0.061 | 0.00 - 2.020 | 0.00 - 30.50 | 0.00 - 1010 |
| 0.25" | 0.00 - 0.138 | 0.00 - 4.585 | 0.00 - 69.00 | 0.00 - 2300 |
| 0.5" | 0.00 - 0.281 | 0.00 - 28.00 | 0.00 - 140.0 | 0.00 - 14000 |
| 1" | 0.00 - 0.782 | 0.00 - 78.00 | 0.00 - 391.0 | 0.00 - 39000 |
| 1.5" | 0.00 - 2.000 | 0.00 - 200.0 | 0.00 - 1000 | 0.00 - 100000 |
| 2" | 0.00 - 3.122 | 0.00 - 310.0 | 0.00 - 1556 | 0.00 - 155000 |
| 3" | 0.00 - 8.000 | 0.00 - 800.0 | 0.00 - 4000 | 0.00 - 400000 |
| 4" | 0.00 - 12.50 | 0.00 - 1250 | 0.00 - 6250 | 0.00 - 625000 |
| 6" | 0.00 - 28.00 | 0.00 - 2800 | 0.00 - 14000 | 0.00 - 1400000 |
| 8" | 0.00 - 50.00 | 0.00 - 5000 | 0.00 - 25000 | 0.00 - 2500000 |
| 10" | 0.00 - 78.00 | 0.00 - 7800 | 0.00 - 39000 | 0.00 - 3900000 |
| 12" | 0.00 - 112.0 | 0.00 - 11200 | 0.00 - 56000 | 0.00 - 5600000 |
APPLICATION NOTE
The Cadillac® magnetic flow meter is an excellent choice for gravity flow applications. However for proper flow meter operation the piping and flow tube must be full at all times. This requires the meter to be mounted in such a way to provide a "wet leg" as illustrated below.
PRICE LIST
| Magnetic Flow Meter Model Number Structure | | Magnetic
Remote Converters |
| Condensate Meters Price List | | Vortex Meters Price List | | Ultrasonic
Meters Price List |
| MAGNETIC FLOW METERS | ||||||||||
| CMAG | Cadillac Magnetic Flow Meter | Base | ||||||||
| A | Size 0.5" | $1,145.00 | ||||||||
| B | Size 1" | $1,275.00 | ||||||||
| C | Size 1.5" | $1,360.00 | ||||||||
| D | Size 2 " | $1,475.00 | ||||||||
| E | Size 3 " | $1,495.00 | ||||||||
| F | Size 4 " | $1,635.00 | ||||||||
| G | Size 6 " | $2,095.00 | ||||||||
| H | Size 8 " | $2,400.00 | ||||||||
| I | Size 10" | $3,495.00 | ||||||||
| J | Size 12" | $4,535.00 | ||||||||
| K | Size 14" | $6,205.00 | II | Integral Converter with Indicator/Totalizer | $1,645.00 | |||||
| RC | Remote Converter | See Below | ||||||||
| W | Wafer Body (ceramic liner) - Available only through 4" | Consult Factory | ||||||||
| F | Flanged Body | $0.00 | ||||||||
| 150 | ANSI Class 150 # | $0.00 | ||||||||
| 300 | ANSI Class 300 # | $295.00 | ||||||||
| S | Electrode Material - Stainless Steel | $0.00 | ||||||||
| X | Electrode Material - Other | Consult Factory | ||||||||
| C | Liner Material - PFA (Teflon) Standard 2" and below | Consult Factory | ||||||||
| D | Liner Material - EPDM (Rubber) - Available 3" and above | $0.00 | ||||||||
| S | Ground Ring Material - Stainless Steel | $0.00 | ||||||||
| X | Ground Ring Material - Other | Consult Factory | ||||||||
| FM | FM Approvals | $0.00 | ||||||||
| MAGNETIC REMOTE CONVETERS | |||||||
| CMC |  |
Cadillac Magmeter Remote Converter | Base | ||||
 |
R | |
Remote Mounting | $1,755.00 | |||
|
I | |
Indicator/Totalizer | $265.00 | |||
|
U | |
Universal Mounting Bracket | $0.00 | |||
|
XXFT | |
Interconnecting Cable (lengths start @ 30 ft) | $5.25/ft | |||
|
FM | FM Approvals | $0.00 | ||||
If you have questions, or would like to receive additional information about our products, please contact us
